A similar technique is to run a line over the tree with a pulley on one end.
Run the antenna rope through the pulley. Pull the pulley up into the tree,
playing antenna rope dead end up through the pulley until the pulleys are as
high and as close to the tree as you wnat them. You have to play the two
ends (and maybe a supported center) alternately until everything is where
you want it. Then at each end (and maybe center) you tie off the pulley rope
and the antenna rope at the bottom of the same tree. This has the dual
benefits of providing some slack through the pulley to compensate for tree
swaying and preventing the tree limb bark from enveloping the antenna rope
and making it impossible to take down. The tree can still grow around the
pulley rope, capturing it, but you can always lower the antenna from the
pulley. The slack is taken up by "rope over pulley" instead of "rope against
rope," so it should last longer.
On 9/4/06, Wes Attaway (N5WA) <email@example.com> wrote:
> Tom .... one more idea .... people talk about using weights on
> the down line from a pulley. I have been using what I think is a
> better option. I just loosely wrap the dacron line around the
> base of the tree and tie it off with a simple loop-type knot
> (like you would use on a boat to stop a line from running back
> out). I'm not sure of the real name for the knot.
> It really works great because there is some "play" in the line
> that keeps things from breaking. The line just pulls up a bit
> when tension is on it, but the friction around a decent sized
> tree is enough to stop it from moving very much. Also, there is
> no need to screw anything into the base of the tree, or to hang
> any kind of weight that will swing around in the wind or try to
> bend your screw-eye. It does not harm the tree. Moreover, it is
> not real obvious and is nice from an esthetic standpoint. You
> can just coil the excess line and lay it on the ground and cover
> it with leaves.
TowerTalk mailing list